152321445 has 64 divisors (see below), whose sum is σ = 296110080. Its totient is φ = 73958400.

The previous prime is 152321443. The next prime is 152321459. The reversal of 152321445 is 544123251.

It is not a de Polignac number, because 152321445 - 2¹ = 152321443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152321443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 70075 + ... + 72215.

It is an arithmetic number, because the mean of its divisors is an integer number (4626720).

Almost surely, 2^152321445 is an apocalyptic number.

152321445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

152321445 is a deficient number, since it is larger than the sum of its proper divisors (143788635).

152321445 is a wasteful number, since it uses less digits than its factorization.

152321445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203 (or 2197 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 152321445 is about 12341.8574371932. The cubic root of 152321445 is about 534.0562685310.

Adding to 152321445 its reverse (544123251), we get a palindrome (696444696).

The spelling of 152321445 in words is "one hundred fifty-two million, three hundred twenty-one thousand, four hundred forty-five".